CVE-2022-24845: Vyperlang Vyper

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. In affected versions, the return of `<iface>.returns_int128()` is not validated to fall within the bounds of `int128`. This issue can result in a misinterpretation of the integer value and lead to incorrect behavior. As of v0.3.0, `<iface>.returns_int128()` is validated in simple expressions, but not complex expressions. Users are advised to upgrade. There is no known workaround for this issue.

Affected products

• Vyperlang Vyper: before 0.3.2 (fixed in 0.3.2)

Published 2022-04-13. Last modified 2026-06-17.